From c825869b65b40ddeb2044ab7f3520970c880ce28 Mon Sep 17 00:00:00 2001
From: Chuck Walbourn <chuckw@windows.microsoft.com>
Date: Tue, 20 Sep 2016 16:59:15 -0700
Subject: [PATCH] texconv: -bcmax and -bcquick are mutually exclusive switches

---
 Texconv/texconv.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Texconv/texconv.cpp b/Texconv/texconv.cpp
index 898bbd0..d1f5914 100644
--- a/Texconv/texconv.cpp
+++ b/Texconv/texconv.cpp
@@ -1204,10 +1204,22 @@ int __cdecl wmain(_In_ int argc, _In_z_count_(argc) wchar_t* argv[])
                 break;
 
             case OPT_COMPRESS_MAX:
+                if (dwCompress & TEX_COMPRESS_BC7_QUICK)
+                {
+                    wprintf(L"Can't use -bcmax and -bcquick at same time\n\n");
+                    PrintUsage();
+                    return 1;
+                }
                 dwCompress |= TEX_COMPRESS_BC7_USE_3SUBSETS;
                 break;
 
             case OPT_COMPRESS_QUICK:
+                if (dwCompress & TEX_COMPRESS_BC7_USE_3SUBSETS)
+                {
+                    wprintf(L"Can't use -bcmax and -bcquick at same time\n\n");
+                    PrintUsage();
+                    return 1;
+                }
                 dwCompress |= TEX_COMPRESS_BC7_QUICK;
                 break;